566 PROCEEDINGS OF THE ACADEMY OF [NoV. , 



band. The interior is purple Avith a bluish gleam, and the lip 

 purple. 



Alt. 18|, diam. 26 mm. 



Tane-ga-shima. 



Only two living specimens of this superb variety Avere taken. 

 Dead shells are reddish rather than chestnut. 

 Ganesella selasia n. sp. 



Shell umbilicate, trochiform, brovvu or corneous-brown, very 

 glossy, striatulate, finely malleate in places. Spire conic; whorls 

 of, convex, slowly inci'easiug, the last depressed, subangular at 

 the periphery, somewhat convex below, slightly descending in 

 front, narrowly constricted behind the lip. Aperture oblique, 

 somewhat triangular, the peristome thin, arcuate and narrowly 

 expanded above and outwardly, the basal margin straight or sinu- 

 ous, reflexed, thickened (like a low, wide tooth) within; columel- 

 lar margin short, dilated. 



Alt. 11|^, diam. 16, Avidth of umbilicus 1^ mm. 



Alt. llj, diam. 15, width of umbilicus 11 mm. 



Nachi, Prov. Kii (Mr. Y. Hirase, No. 788). 



The glossy surface, narrow whorls and open umbilicus separate 

 this from all forms of G. japonica.'^ 

 Ganesella cristata n. sp. 



Shell imperforate, globose- trochiform, pale russet, with a faint 

 broAvn line at the periphery, a pale line below it. Surface very 

 obsoletely and indistinctly papillose, somewhat dull. Spire a little 

 convexly conic. Whorls 5f to 6^, con\'ex, the last rounded per- 

 ipherally. Abruptly descending in front, expanding in a conspicuous 

 ridge or crest and then strongly contracted behind the lip. Aperture 

 oblique, someAvhat triangular, the upper and outer margins ex- 

 panded, thickened within, basal margin straightened, reflexed, 

 indistinctly toothed or thickened Avithin; columellar margin short, 

 abruptly expanded over and covering the umbilicus. 



Alt. 14, diam. 16 mm. 



Alt. 11^, diam. 15 mm. 



Nachi, Prov. Kii (Mr. Y. Hirase, No. 783^>). 



The absence of spiral lines on the slightly dull, silken surface, 

 the closure of the umbilicus, and the crest behind the lip all mark 

 this as a species distinct from the G. japonica series. The smaller 

 specimens are obtusely subangular in front. 



